the effect of detraining and intervention strategies on injury incidence during preseason in...
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The Effect of Detraining and Intervention Strategies on Injury Incidence during Preseason in Adolescent Soccer PlayersTRANSCRIPT
The Effect of Detraining and Intervention Strategies on Injury Incidence during
Preseason in Adolescent Soccer Players
Jan Van Winckel1,3
Berckmans, B.1, Seerden, G.1
McMillan, K.2, El-Shafie, A.A.1,5, Bradley, P.S.4, Jacobs, P.1, Helsen, W.3
1 Al-Ahli Saudi Football Club, Jeddah, Makkah, Saudi Arabia.2 Aspire Academy for Sport Excellence, Doha, Qatar.
3 Department of Biomedical Kinesiology, University of Leuven, Belgium. 4 Department of Sport and Exercise Science, University of Sunderland, UK.
5 Faculty of Physical Education, University of Sadat City, Egypt.
Introduction
Injury incidence during preseason is higher than in any other period
Coaches focus on rebuilding fitness by adjusting load in preseason
The higher incidence of injuries during preseason has often been attributed to a higher
workload
Introduction
Our hypothesis is that a detrained status might affect the incidence of injury because of an
imbalance between the imposed load and the reduced load tolerance of the player
The primary aim of this study was to examine the effect of intervention strategies on injury
incidence during the following season
Method
Elite adolescent players (n = 94) from a Saudi professional football club
Players from U16 – U23 team
18 months observation (season 1: 2012-2013 and season 2: 2013-2014)
Study procedure
Season 1: 2012-2013Data analysis
Intervention strategies prior to and during the 2013 preseason
Season 2: 2013-2014Data analysis
Time
Data analysis
Injury incidence = the number of injuries per 1,000 player-hours of match or training
exposure
Injury = being unable to take full part of future soccer training or match play (>2 days)
Intervention
Intervention strategies:1. Aerobic maintenance program during offseason2. Individualized injury prevention exercises during offseason3. Five-week aerobic rebuilding phase during preseason
Offseason aerobic maintenance program:
ResultsSeason 1 Season 2
Injury Incidence 1.26 0.74* (d=0.63)
Total muscle injuries 0.88 0.46** (d=0.63)
*p<0.01 and **p<0.05
There were no significant differences in the weekly training volume between season 1 and season 2.
Discussion
The higher incidence of injury during preseason might not only be contributed to the higher
workload but also to the detrained state of the players at the start of preseason
The effects of detraining can be counteracted with intervention strategies
